On June 18, a task force convened by AABB to assess the risk of transmitting XMRV via transfusion of ME/CFS patients’ blood advised the organization’s member blood collectors to "actively discourage" individuals ever diagnosed with ME/CFS from donating blood or blood components.

Task force members included representatives of the CDC, FDA, NIH, Office of the Assistant Secretary for Health, XMRV researchers, the blood community & patient advocates.

They note that this is an interim measure until further definitive data are available, and that at this time there are no federal donor eligibility regulations pertaining to XMRV in the US.

Since diagnosis of CFS is often confused or sustituted with a diagnosis of Fibromyalgia, many people with a diagnosis of FMS will have CFS and its possible concomitant infection. Also many people with MCS probably also have the same infection (assuming it is the cause). How must a blood service deal with such poor diagnostics? Not that many people with full blown MCS would go near a blood donating service.